C313212111113331323312111133133313331333133313331333133313331321123232223221   >>    C31321211111333132331211113313331333133313331333133313331333132112323222322   <<    C313212111113331323312111133133313331333133313331333133313331321123232223223   >>      C313212111113331323312111133133313331333133313331333133313331321123232223222   >>